No need for me to add anything to what Martin has said, he's summed it nicely (1v/rt Hz might be a
tad high though
).
I would highlight the comment about the 'magic' of 47pf (50pf, ideally) cap. I think many here are going to be *very* surprised if they try listening to the clock without this cap, then add it once familiar.
It's effect is little short of astonishing, sonically, in all the places I've tried it.
This is well an truly a board for experimentation, and I'd urge people to do just that, but I've tried AD817, AD825, AD8065, AD8620, OPA627, some whizzo TI THSxxx something or other and nothing has come close to the AD797 here, but it's not without it's difficulties. I feel we've addressed most of those though, it should work well. If not we'll have fun and learn a lot fixing it
Anyway, I'm happy with the board, the modest size reduction helps lower the costs that little bit. I will run Gerbers soon, and pass them to anyone who wants to get quotes (I'll get quotes from my usual supplier, Minnitron), then we can compare numbers. Before that we'll need a good indication of numbers wanted - there's a direct realtionship to price here.
Meanwhile I have a panic on at present as my server is conspiring against me and I've had a HD meltdown, no data loss (good backups + RAID5) but a PITA to re-install the OS.
F***ing computers!
Andy.